aFe

This system produced gains of up to +18 HP and +25 lbs. x Ft. TQ., as measured on our in-house dyno. This system is constructed of 1-7/8" mandrel-b...

aFe's Twisted Steel headers outflow and outperform the Ford diesel factory exhaust manifolds for a true, bolt-on performance header system. These p...

This system produced gains of up to +6 HP and +7 lbs. x Ft. TQ., as measured on our in-house dyno. This system is constructed of 1-5/8 IN mandrel-b...

This system produced gains of up to +6 HP and +7 lbs. x Ft. TQ., as measured on our in-house dyno. This system is constructed of 1-5/8 IN mandrel-b...

This system is constructed of 1-7/8 IN - 3 IN mandrel-bent 304 stainless steel tubing for maximum strength and durability. This coating combination...

This Twisted Steel Loop Delete Down Pipe replaces the factory loop section on the Jeep JL exhaust after the catalytic converter to accommodate most...

This system is constructed of 1-5/8 IN - 2-1/2 IN mandrel-bent 304 stainless steel tubing for maximum strength and durability. Includes a catalytic...

This mid-pipe is constructed of durable mandrel bent brushed 304 stainless steel tubing for maximum performance, corrosion resistance and strength ...

Add dyno-proven power to your Ford Focus RS with this Twisted Steel down-pipe which produced up to +10 horsepower and +14 lbs. x ft. torque max gai...

This system is constructed of 1-5/8 IN mandrel-bent 409 stainless steel tubing for maximum strength and durability. Factory style laser cut machine...

The aFe Mach Force XP Loop Delete/Y-Pipe combo package is engineered to replace the stock loop section and y-pipe to accommodate long arm travel li...

Twisted Steel Downpipe 2-1/2 to 2-1/4 IN 409 Stainless Steel w/ Cat Toyota Tacoma 16-19 V6-3.5LInstallation InstructionsThis Part Fits: Year Make ...

100% TIG-Welded by certified craftsmen for race proven strength and durability. TIG-Welding provides the strongest welds reducing stress cracks. Pa...

Upgrade your Z4 M Coupe exhaust with the Twisted Steel 2 ½" race pipe. Mandrel bent from 304 stainless steel tubing for maximum exhaust flow and co...

Twisted Steel 304 Stainless Steel Performance Package GM Diesel Trucks 15-16 V8-6.6L (td) LMLThis Part Fits: Year Make Model Submodel 2015-2016 ...

This system is constructed of 1-5/8 IN mandrel-bent 409 stainless steel tubing for maximum strength and durability. Includes dual high flow catalyt...

aFe Power?s new ?Race Only? Twisted Steel Headers deliver 6 hp and 6 lbs. x ft. torque while outflowing the factory exhaust manifolds. The headers ...

The new Twisted Steel performance header from aFe Power is redefining the header industry with new pulse control technology. aFe engineers have des...

The new Twisted Steel performance header from aFe Power is redefining the header industry with new pulse control technology. aFe engineers have des...

Tri-Y Design: Paired opposite firing cylinders with equal, specifically tuned primary lengths maximizes scavenging and increases torque throughout ...

Construction: These unique up pipes are constructed of 2" mandrel-bent 304 stainless steel tubing with a .120" wall for strength and durability. 2"...

Advanced Flow Engineering, Inc. (aFe) produces high flow, high performance air filters & intake systems for the automotive industry. Founded in...

aFe Power's New Twisted Steel Headers deliver +6 HP and +6 lbs. x ft. torque over the factory exhaust manifolds. The headers are constructed of 1-1...

The Twisted Steel performance header from aFe POWER is redefining the header industry with new pulse control technology. aFe engineers have designe...